Improvement in combination-locks



UNITED STATES QFFICE,

THOMAS MOOLANAHAN SEATON, OFv PARSONS, KANSAS, ASSIGNOR To HIMSELF AND JOHN ADAMS, OE SAME PLAGE.

IMPROVEMENT IN COMBINATION-LOCKS.

Specification forming part of Letters Patent No. 178,964, dated June 2U, 1876; application filed February21,1s16. i

To all whom it may concern:

Be it known that I, THOMAS MCC. SEATON, ot' Parsons, Labette county, Kansas, have invented a new and Improved Combination- Lock, of which the following is a specification:

The invention consists in making` the tumblers of a lock with points that work -in slot ot' bolt, and causing the disk-knob to slide in a slot of the plate.

Figure l is a front elevation of ,my iinproved lock. Fig'. 2 is an elevation ot' the inside of the front plate and the bolt, and Fig. 3 is a section of Fig. 2 on line w x.

Similar letters Ot' reference indicate corresponding parts. v

A is the plate of the lock; B, the bolt; C, the circular openingl in which the tumblers D D and E work, said tuinblers being' attached to a knob-spindle, F, for each one. The tuniblers D are constructed at one side of' the joint to correspond with the circumference of' the circular opening C, and on' the opposite side have a tongue or projection, G, corresponding to a notch, H, in the bolt. Tunlloler E is a disk exactly fitting the circular opening` C, and having a notch, I, corresponding to the stud J, projecting from the lock-plate,

and the bolt has a notch, K, for saidl stud. The projections G must be set to coincide with the notches H. and notch I with stud J, to allow the bolt to slide. The knob of disk E slides a slot, L, (dotted,) of plate A to throw the bolt. The dials connected to the knobs -show how to set the knobs, and by shifting vided With projections G, and the tumbler'E with notch I, all constructed and arranged substantially as and for th'e purpose specitied.

THOMAS MCCLANAHAN SEATON. Witnesses:

" M. L. TEOTTER,

E. K. SMITH. 

